Philippine centennial. s.n.
Cita Chicago (17th ed.)Philippine Centennial. [s.l: s.n.
Cita MLA (9th ed.)Philippine Centennial. s.n.
Atenció: Aquestes cites poden no estar 100% correctes.
Philippine centennial. s.n.
Cita Chicago (17th ed.)Philippine Centennial. [s.l: s.n.
Cita MLA (9th ed.)Philippine Centennial. s.n.